Ratchet wrench



y 1, 1931. R. E. suzss ET AL 1,815,304

RATCHET WRENCH Filed June 14, 1930 2 Sheets-Sheet l amnion July 21,1931-. I R S'Es ET AL 1,815,804

RATCHET WRENCH Filed June 14, 1930 v 2 Shets-$heet 2 P 5. 5755s 5. J-LAEA/ME- Patented July 21, 1931 UNITED" STATES PATENT orncs ROBERT E.81358 AND DUCLIBE 3'. LL BAUVE, 03' LA. CHARLES, BATCHET WRENCHApplication fled June 14, 1980. Serial No. 481,169.

wrench, or when the latter is engaged therewith.

Another object of the invention is the provision of a wrench of thischaracter, wherein the jaw head is of such construction that the movableparts are replaceable, thus permitting rendering said wrench adaptablefor different sizes of work, the parts of saidv wrench being assembledin a novel manner.

A further object of the invention is the pro- Vision of a wrench of thischaracter, wherein the entrance for the work to the gr'ippin jaw islocated in close proximity to the han 1e or shank of said wrench, so asto give maximum strength thereto, and also, to permit convenientintroduction of the latter to the sucker rod or other part to beoperated, the wrench in its entirety bein of novel form.

A still further ob ect of the invention is the provision of a wrench ofthis character,

wherein the trigger for actuating the ratchet is located in a convenientposition for easy access and manual control. A still further object ofthe invention is the provision of a wrench of this character, which isextremely simple in construction, thorough- 1y reliable and efficient inits purpose, strong, durable, readily and easily operated, compact, andinexpensive to manufacture.

' With these and manyother objects in view, the invention consists inthe features of construction, combination and arrangement of parts aswill be hereinafter more fully de scribed, illustrated in theaccompanying drawings, which discloses the preferred embodiment of theinvention, and pointed out in the claims hereunto appended. In theaccompanying drawings:

the jaw head cover plate removed Flgure 3 is a sectional view taken onthe 66 line 3-3 of Figure 1;

Figure 4 is a plan view of the jaw head cov- I er plate look ng towardits inner face; and

igure 5 1s a fragmentary sectional view on theline 5-5 of Figure 1.

S1m1lar reference characters indicate corresponding parts throughout theseveral vlews 1n the drawings.

Referring to the drawings in detail, the wrench WhlCh is designatedgenerally at A, compr ses a handle 5, which, in this instance, 1sstralght and forms a continuation of av shank 6, the latter and saidhandle being outwardly tapered, althou h these may be otherwise formedif found esirable. The shank 6 is integrally formed with a aw head 7whlch, for its major contour, is of circular formation, the shank 6being tangentially merged therein eccentrically with respect to thecenter of said head. One side face of the head isofiset as at 8, withrelation to the shank 6, while removably fitted on the opposite sideface of the head is a cover plate 9, the manner of removably attachmgthe latter being hereinafter described.

Centrally of the head 7 is a circular recess or socket 10, while openinginto the latter is an entrance mouth 11, the same being disposedangularly with respect to the shank '6. and 1n close proximity theretoor to the point of merger of the head and shank. This head 7 forms thestationary jaw of the wrench, while rotatably fitted within the recessor socket 10 is the movable jaw 12 of said wrench and this latter jawconstitutes the grip for a sucker rod or other part to be operated. Theaw 12, is provided with a work receivin notch 13 opening through itsperiphery, w 1ch 1s adapted to register or aline with the mouth opemng11 when the work is to be received therein.

The offset face 8 of the: head 7 uniformly extends over aportion of thecenter openmg 10, to prov1de at one side thereof, a reta1mng flange 14,while the cover plate 9,

which, when applied to the head, presents an offset thereto opposite theoffset face 8, likewise is uniformly extended over the center opening10, to provide a retaining flange '15 counter to said flange 14, aswillbe apparent. The movable j aw 12, is provided 011- cumferentiallywith ratchet teeth 16, these being projected, and ride on the flanges 14and 15, which latter constitute a race-way therebetween within the 'awhead 7, for the movable jaw. This mova l'e jaw 12 is readily extractablefrom the recess or socket 101 for accommodating the same, so thatdifferent types of movable jaws and also different sizes of the same canbe substituted accordmgly to the work to be operated upon by the wrench.

v Communicating with the recess or socket 10 close to the shank 6, atthe point of merger of the same with the head 7, is a ratchet do spaceor chamber 17, in which is arrange arelativelywide ratchet dog 18,coacting with the ratchet teeth 16 on the movable aw to lock it againstmovement in one direction and to permit free turning movement in thereverse direction. This dog 18 is formed with a stem 19 playing througha suitable opening 20 therefor, and with this stem is operably connecteda finger controlled actuating tri ger 21, pivotally mounted at 22, onthe shan 6 1n convement position and ready manipulation by the user ofthe wrench. When the trigger 21 is operated, it will cause the releaseof the dog 18 from the ratchet teeth 16,

thus permitting free movement of the jaw 12 clock-wise orcounter-clockwise. The dog 18 is sustained in latching position by meansof a tension spring 25 active thereon.

The jaw head cover plate 9, is detachably secured to the latterpreferably through the medium of anchoring slots 23, and studs 24,respectively, although said plate may be otherwise removably fastenedupon the head 7, of the wrench if found necessary. On removal of thelate 9, access may be had to the interior 0 the head 7 and the movableparts extracted therefrom should the occasion require.

It will be noted that when the sucker rod or other part to be turned bythe wrench is introduced through, the mouth 11 into the movable jaw 12and the handle of said wrench is shifted to through the mouth 11 andnotch 13 out of register or alinement,

- the said movable jaw 12 will be caused to grip the rod or partentirely about the latter and such wrench cannot become accidentallydetached from the rod or part.

The movable jaw 12 can be reversed in the head 7, so that the wrench isworkable in two directions, thus making it adaptable for a right or lefthand wrench. It is, of course, understood that when reversing themovable jaw 12 the dog 18 is likewise reversed in the head 7 of thewrench.

Manifestly, the construction shown is capable of considerablemodification, and such modification as is within the scope of ourclaims, we consider within the spirit of 'our invention.

We claim:

1. An open end ratchet wrench of the character described comprising ahandle, a shank formed therewith, a hook-shaped jaw head formed withsaid shank and offset therefrom, said head having a mouth angularlydisposed with relation to said handle and in close proximity thereto,said jaw head havin a circular opening therein, a rotatable jaw mountedwithin said circular opening and having a work receiving notch normallyregistering with the mouth of said jaw head, ratchet teeth formed uponthe periphery of said rotatable jaw, said head having a recess formedtherein opening into the circular opening thereof, a relatively Wideratchet dog slidably mounted within the recess and held against lateralmovement therein by means of the walls of the recess, teeth formed withsaid ratchet dog and adapted to normally mesh with the ratchet teeth ofsaid rotatable jaw, and manually operable means tegral with the shankand offset therefrom,

said jaw head having a circular concentrically arranged recess thereinopening to one side thereof, a flange formed with the opposlte side ofthe jaw head to which the recess opens onto and artially covering saidrecess, a rotatable aw comprising a circular body, centrally arrangedrat'chet teeth formed upon the eriphery of said body portion of themoval posed annular bearing surfaces, said jaw head having anentrancemouth extending therethrough in close proximity to said shank andangularly disposed with respect thereto, a work receiving notch formedin sald rotatable jaw and adapted at times to register with the entrancemouth of said jaw head, sald jaw head having an angularly dlsposedrecess therein opening into the circular recess thereof, a relativelywide ratchet dog slidably disposed in the angularly arranged recess ofsaid jaw head, ratchet teeth no Y formed with said ratchet dog formeshing with the ratchet teeth of said movable jaw,

spring means for normally holding the teeth of said ratchet wheel intomesh with the le jaw and providing op ing therein, one of said bearingsurfaces of said rotatable jaw being mounted within said flange of thejaw head and the other of said bearing surfaces being mounted within 5the opening of said cover plate, substantially as and for the purposespecified.

In witness whereof We have hereunto set our hands.

I ROBERT E. SIESS. DUCLISE J. LA BAUVE.

